LHV Power Corp. (Santee, CA) introduced its new PH220 Series of 200 W high-voltage power supplies that are housed in a standard 3U-high chassis and are rack-mountable for use in a wide variety of embedded or stand-alone applications. The line-operated power supplies feature a semi-linear, sine-wave topology, exhibiting low noise and high-precision output characteristics for demanding applications in MRI scanners and other systems with multiple PMT devices.

The PH220 Series' first production model is rated for an output voltage of -1,500 Vdc, with a broad range of output voltages from 100 V to higher than 5,000 V possible; either positive or negative output polarity can be factory selected. The power supplies boast full analog remote control capabilities, including voltage and current-mode programming, enable input, and monitor outputs ? with better than 0.01% line, load, stability and noise performance; higher precision is optional.

The PH220 units provide system interface via a nine-pin, circular connector, and come standard with an SHV jack high-voltage output connector. Other control and output connector types are available. When fitted with optional front panel controls and metering, the power supplies are suitable for stand-alone bench use. The units measure 19 in x 5.25 in x 12 in, weigh less than 35 lbs, and are designed to meet IEC 601 safety requirements.

Features

• Universal AC input
• High Precision
• High Stability
• Extremely Low Noise
• Ideal for OEM Installations
• Full Remote Control
• Optional Local Control
• Rack Mountable
• Bench top Supply
• Optional Displays

• Input: 115VAC +/- 10% @ 6.25A max Unit to be equipped with IEC socket with 6.3A standard blow fuses hardwired for permanent "on" condition.
• Output: -1,500VDC @ 0.130A max, adjustable to 0V @ 33% of max current.
• Voltage Control: Remote programming only. 0 to -5VDC signal is proportional to 0 to maximum rated output. Accuracy is +/- (0.25% of setting + 0.05% of maximum). Input impedance is 5k.
• Line Regulation: +/- 0.005% (50ppm) of maximum for 10% line change.
• Load Regulation: +/- 0.005% (50ppm) of maximum for 0 to maximum output current change.
• Ripple: =100mVpp @ full load and maximum output voltage.
• Voltage monitoring: Remote monitoring only. 0 to +5Vdc proportional to 0 to maximum output high voltage. Accuracy is +/- (0.25% of reading +0.25% of maximum). Monitor output impedance is 1k.
• Current Monitoring: Remote monitoring only. 0 to +5Vdc proportional to 0 to maximum output high voltage current. Accuracy is +/-(0.5% of reading +0.25% of maximum). Monitor output impedance is 1k.
• Temperature Coefficient: 50ppm of maximum per deg.C (0 to 50°C)Stability: After 30 minute warmup, 0.01% (100ppm) per hour, and 0.02% per 8 hours.
• HV Output Connector: SHV jack.
• Remote I/O Connector: 9 pin locking circular connector. Other connectors optional.
• Hipot Test: With line and neutral shorted together, unit must pass application of 1500VAC and 2130VDC between chassis ground and line/neutral inputs for 60 seconds each test. Maximum AC Hipot current is 9mA and 0.45mA for the DC Hipot test.
• Size: 10" W x 5.25" H X 12" D (483mm X 134mm X 305mm)
• Weight: < 40lbs.
• Safety: Designed to meet IEC601 requirements; customer is responsible for testing and certification.

The new PH220 Series power supplies are priced starting at $2980, and come with a one-year warranty.  Availability is stock to eight weeks.